Directions

In a 5-6 quart pan over high heat, bring about 2 quarts water to a boil. Meanwhile, rinse green beans, trim off ends, and pull off any strings. Cut into 2-3 inch lengths. Add beans to boiling water and cook until barely tender to bite, 3 to 5 minutes. Drain and immerse in ice water until cold; drain well.

Fill same pan with 3 quarts water and bring to boil over high heat. Add orzo and cook until barely tender, 8-11 minute Drain and rinse with cold water, drain well.

Husk corn, Hold each ear upright, cut off kernels close to the cob.

To make dressing; In a small bowl, whisk together vinegar, olive oil, shallots, mustard, tarragon and salt and pepper to taste.

In a large, wide bowl, mix orzo with 1/2 Celsius of the dressing. Add more salt and pepper to taste. Spread level. Layer corn kernels, green beans, and tomatoes over pasta. Pour remaining dressing into a container. Cover and chill both the salad and dressing until ready to serve.

Shortly before serving, pour 3/4 of the remaining dressing over salad and mix gently to blend. Add more dressing and salt and pepper to taste.